The OM Chapter 1 release date is 20 November 2026, and the film is spending today, 6 November, in the middle of its biggest promotional moment yet. Dhanush and Mammootty are set to share a stage in Chennai for the grand audio launch of OM: Chapter 1: Udhiram: The Blood Wood, at Sairam Engineering College, in what the makers are billing as one of the biggest film events of the season.
The OM Chapter 1 release date is the anchor for the film’s final push. It is a fitting build-up for a film that brings two of South Indian cinema’s biggest stars together for the first time as co-leads, and it is also a reminder of how far this project has travelled: it was first announced as Dhanush’s 55th film, then moved from its original October date to a November one, and now arrives in cinemas worldwide in exactly two weeks.
Image Credit: Wunderbar Films — Official Trailer/Poster via YouTube
That two-week countdown is what makes the OM Chapter 1 release date worth marking. Directed by Rajkumar Periasamy, the filmmaker behind the blockbuster Amaran, the film is a large-scale pan-Indian action drama built around a forest, a woodcutter and the people caught in the red-sanders trade. Dhanush plays the woodcutter. Mammootty plays Karthikeyan. Sai Pallavi plays a police officer, Sreeleela plays Roja, and Naseeruddin Shah and Indrans fill out an ensemble that already looks like one of the strongest of the year.
The music is by Sai Abhyankkar, and the whole project is mounted by RTake Studios and Wunderbar Films as the first chapter of a two-part franchise.
OM Chapter 1 release date: why 20 November, and what changed
The OM Chapter 1 release date was not always 20 November. When Wunderbar Films unveiled the title and the first teaser on 18 June 2026, the film was locked for a worldwide theatrical release on 16 October 2026, just a day after Rajinikanth’s Jailer 2 was due to arrive. In early October, Dhanush announced a change of plan: the film would not release for Deepavali, and the makers confirmed 20 November 2026 as the new date.
The announcement came with a striking poster of Dhanush and Mammootty in a gritty, blood-splattered setting, and the message from the makers was simple: the day for the ultimate strike is here.
That shift also moved the film out of the crowded Diwali window and into a clearer stretch of November, where it now shares the month with the Diwali releases that have already opened.
It will be Dhanush’s second release of 2026, after Kara, the film directed by Por Thozhil filmmaker Vignesh Raja. The Kerala distribution has also been locked in, with Binu George Alexander announced as the distributor for the state, a significant detail given Mammootty’s presence in the cast. No streaming or OTT date has been announced yet, and no OTT platform has been named, so cinemas are the only confirmed way to watch it for now.
What the OM First Strike teaser shows
The first real look at the film came with the OM First Strike teaser, a two-minute-32-second title announcement that wastes no time setting its tone. It opens on mountains, forests and a temple town, calm and scenic, before cutting to a rain-soaked jungle confrontation where police personnel hold woodcutters and workers at gunpoint.
Then Dhanush steps in, and the teaser turns into a full action sequence: hand-to-hand fights in the rain and mist, a rifle raised, and finally Dhanush lifting a massive weapon above his head as the title appears on screen.
That imagery is the film in miniature. The story is rooted in the forest and in the world of red-sanders cutting, with Dhanush’s woodcutter caught between the people of the forest and the forces trying to control it.
Mammootty’s Karthikeyan sits at the centre of that conflict, and the teaser makes it clear that the film is not a gentle drama about the woods. It is an intense action film, shot through with tension and rebellion, and the rain, the mud and the dense green of the forest are as much a part of the mood as any of the performances.
Dhanush and Mammootty: a first-time pairing
The single biggest reason the OM Chapter 1 release date is being watched so closely is the pairing at the top of the poster. Dhanush and Mammootty have never headlined a film together before, and OM: Chapter 1 puts them on screen as the two poles of the same story: Dhanush as the woodcutter whose life is tied to the forest, and Mammootty as Karthikeyan, the figure whose presence shapes everything around him.
The makers have kept most of the story under wraps, which has only added to the curiosity about how the two characters collide.
There is also the question of scale. Rajkumar Periasamy’s Amaran was one of the biggest Tamil hits of recent years, and OM is clearly built to be bigger: a pan-Indian action drama, mounted as the first part of a two-part franchise, with the chapter subtitle Udhiram: The Blood Wood promising a larger world beyond this one film.
The production is presented by RTake Studios with Wunderbar Films, and produced by Shraddha Agrawal, Dhanush and Azmat Jagmag. For Mammootty, it is a major Tamil-language appearance, and for Dhanush, it is the centrepiece of his year as both star and producer.
The cast around them, and the music
Sai Pallavi’s role is one of the most talked-about parts of the film. She plays a police officer, a new avatar for an actor known for very different kinds of roles, and her character sits on the other side of the film’s central conflict from Dhanush’s woodcutter.
Sreeleela plays Roja, and the makers revealed her character and look on 3 November, alongside the arrival of the third single, Senjudare. Naseeruddin Shah adds serious weight to the ensemble, and Indrans, one of Malayalam cinema’s most respected character actors, rounds out a cast that crosses Tamil, Malayalam and Hindi cinema.
The music has been building its own momentum ahead of the film. Sai Abhyankkar, credited playfully as “iSai” by the makers, has composed the score and songs, and the tracks released so far have already started trending among fans.
The audio launch today in Chennai is the moment all of that comes together on one stage, with Dhanush and Mammootty appearing together in public for the film for the first time. For a film that has kept its story closely guarded, the music has been the main way in so far, and the launch is expected to set the tone for the final two weeks of promotion.
What to expect from the final two weeks
With the OM Chapter 1 release date now just fourteen days away, the next steps are easy to predict. The audio launch today is the big event, and the trailer, the second teaser glimpses and the remaining songs should follow quickly.
The film has already shown it can dominate a news cycle with a single poster or a single song, and the makers have been careful to release information in small, deliberate bursts rather than all at once.
If you enjoyed the tension of Scene, the Suriya-led thriller that opened in cinemas today, this is a very different kind of scale: a forest epic rather than a police procedural, and a two-star collision rather than a single investigation.
The question now is whether the film can live up to the poster. On the evidence of the teaser, the cast and the director’s recent record, it has every chance.
Frequently asked questions
When is the OM Chapter 1 release date?
The OM Chapter 1 release date is 20 November 2026, when the film arrives in theatres worldwide. It was originally scheduled for 16 October 2026 and was postponed to avoid a clash with Jailer 2.
Who stars in OM Chapter 1?
Dhanush plays a woodcutter and Mammootty plays Karthikeyan. Sai Pallavi plays a police officer, Sreeleela plays Roja, and Naseeruddin Shah and Indrans are also in the cast.
Who directed OM Chapter 1?
Rajkumar Periasamy wrote and directed the film. He previously directed Amaran (2024). The music is by Sai Abhyankkar.
What is OM Chapter 1 about?
OM: Chapter 1: Udhiram: The Blood Wood is a pan-Indian action drama set around a forest and the red-sanders trade. Dhanush’s woodcutter is linked to the forest and its people, and the story follows the conflict that grows around them. It is the first part of a two-part franchise.
Is there an OTT release date for OM Chapter 1?
No. No streaming date or OTT platform has been announced yet. The film is releasing in theatres first, on 20 November 2026.
Where can I watch the OM teaser?
Watch the official OM First Strike teaser from Wunderbar Films below.
The OM Chapter 1 release date is now close enough to count down in days, and today’s audio launch is the moment the film stops being a poster and starts being an event. Dhanush and Mammootty on one stage, a forest full of secrets on screen, and a director with a recent blockbuster behind him: that is a combination worth watching. Keep an eye on local listings as 20 November approaches, and listen to the music in the meantime. It is the best preview of the film’s mood you will get before the lights go down.
